Improvement in bearings for vertical shafting



uint-TT; 'BEARING FOR VERTIGAL'SHAITING. 1

Patented Sept. 8,'1863.

. Wizz/@spa l ing drawings, makin I, understand and con struct 'UNITED STATESN ATENT OFFICE.

JAMES PLATT, OF UTICA, NEW YORK.

`lli/IPRCDV'EIVIEN'IV' IN `BEARINGS FOB. VERTICAL SHAFTING.

Specification forming part of Letters Patent No. 39.830, dated September 8, 1863, antedsted October 25, 1862. i

To all whom, it may concern..- Be it known that L-JAMEs PLATT, of Utica, in the county of Oneida and State of New York`,haveinvented a new and Improved Anti- Frictinn Step or Bearing for Vertical Shaft- .in`g; andl dohereby-declare that the follow- ;ingis a full, clear, and exact description of the saine, reference being had to the accompany,y-

g a partiof this specitcation, in which-v 1 Figure@ is a vertical central section of. my invention, talien in the line a: w, Fig. 2; Fig. 2, a horizontal section of the saine, taken in' the line y y, Fig. 1.

Similar letters of reference indicate correak spending parts in the two figures.`

This iuventionconsists in the employment or use of a series lof conical rollers placed in anjannnlar frame.' tvh'icir'is'fitted looselyiiran adjustable box placed. in or on the framing designed to support the shaft, in combination with alcollar placed on the 'sh-aft, and provided -with a beveled under surface, ywhich rests or v bears on the conical rollers, all being arranged in such a man-ner as to properly support the To enable those skilled in the art to fully my invention, 1 will proceed to describe it. o Y VA represents a portion of airnming, which is designed to support a vertical shaft, B, and.

U is a boinwhich is placed on A andiitted on vertical guide-pins a attached thereto, `said pins preventing any lateral movement of 4the `box U, but admitting of thef latter .moving freely up `and down on them. The box() isof annular form. or it' may be described as being of circulan.l form and provided with an annular groove, b,,havi'ng an inclined bottom,- 0, the "inner edge.` of which is higher than the outer edge, as'shown in Fig. 1. The box C is provided'at the lower part of its,4 outer side with fhorizontal ear-sd, throughwhichvertical set screws D pass and bear upon A. i l E is an annular frame, formed of two concentric rings or bands, e aconnected at their lower partei by radial bars f, which are et equal .all times. shaft and admit of its being rotated with but a comparatively small amount of friction.

forth.

distances apart. and\betwe,en the, two' rings` i l or bandsle e vthemdare )laced conical rollers F said rollers being between the barsf and tted looselyV on radial ixed shafts g, the ends of which are, secured the rings ,or bands c c. The rollers F may boot' cast'steel, chilled castiron, orother suitable metal or material, and they rest or bear on the inclined bottom c of the groove b, the frame E also fitting in said groove, and being allowed to turn freely within it, the inclination of the bottom c of groove b corresponding to the inclination of the peripheries of the rollers F, as shown in Fig. 1.

G is. a collar, which isplacedon the shaft B, and secured thereto b v a set screw, H. This collarhas a beveled orinclined under surface, h, which rests on the rollers F and sustains the shaft, as will be fullyxundefrstood by referring to Fig. 1. By this arrangement it will be seen that the shaft' B may rotate with but little friction, as the rollers F are' not only allowed@ to rotate independently, but the `frame E may The shaft B may beadjusted higheror lower by turning the set-screws D.

' l The independent movement of the frame E is an essential feature of the invention, .as-"it admits of two movements of the rollers F, one on their own axes, and a traveling' movement aronod on the bottom c ofthe gro-ove `b.

use di' friction-rollers, irrespective of the arrangement and particular manner of applying ythemlv as hereins'et forth; but,

Having thus described my in vention. what I do claim as new, and desire Vto secnreby Let-` lters Patent, is-f- ,o

The friction-rollers F, tte'd in an annular revolving frame, E, incombination vwith the adjus able box G, placed on the framing A, and thecllariG', placed-on the shaft B, allv arrangedas and for the purpose herein set l JAMES PLATT. Witnesses:

J 01m R. Timm, E. J. SroDDARD.

g-surfaqes well lubricated at I do not claim', broadly, the employment or i 

